##### An artist paints and sells square tiles. The selling price $P$, in dollars, of a painted tile is a linear function of the side length of the tile $s$, in inches, as shown in the table below.

Side length, $s$ (inches) | Price, $P$ (dollars) |
---|---|

3 | 8.00 |

6 | 18.00 |

9 | 28.00 |

##### Which of the following could define the relationship between $s$ and $P$?

Difficulty: Medium

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